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Vulnerabilities CVE-2025-21795

CVE-2025-21795

High
Open
TLP:CLEAR

NFSD: fix hang in nfsd4_shutdown_callback

NVD CVE.org
Critical Infrastructure

AI Analysis

No AI analysis yet.

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix hang in nfsd4_shutdown_callback If nfs4_client is in courtesy state then there is no point to send the callback. This causes nfsd4_shutdown_callback to hang since cl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP notifies NFSD that the connection was dropped. This patch modifies nfsd4_run_cb_work to skip the RPC call if nfs4_client is in courtesy state.

Details

CVSS Score
7.5
EPSS Score
0.62%

46.4th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
Feb 27, 2025
Last Modified
Aug 5, 2026
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